Answer:
since the decay rate constant of0.0 250 min.
hence the time required for the sample to decay to one forth of it's initial value is
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
the pattern is x5 for y, +1 for x
19%. If the denominator is 100, then the numerator plus a percent symbol is the answer. Hope this helps!
Answer:
25 miles
Step-by-step explanation:
18 ÷ 72% =
18 ÷ (72 ÷ 100) =
(100 × 18) ÷ 72 =
1,800 ÷ 72 =
25